When i finish map in print composer and click on Export to an image format and after i go to folder where i saved it there is no image.
If do same with Export as PDF i get PDF file but cant open it ...

I have a jpeg image of a reserve's layout and would like to use it to plot animals movements on i.e. GPS points. I have no idea which coordinate reference system to choose during the "georeferencing" ...

I am working with 10s of large raster data, each one is from jpeg, around 65000x22000 pixels, I have a normal laptop, with 8 Gb of RAM and i5 processor.
Can any one give me guidance on how do i make ...

I have a large map data set of 256x256 jpg images. The file directory is organized by /map_type/zoom/x/y.jpg. I have 12 zoom levels and each zoom level directory has 2^(2*zoom level) images.
I have ...

I can't add JPG files into QuantumGIS. I get an error message "C:\Spatial_Days\Data\Working\AP_Coast_Export.jpg is not a supported raster data source".
I am using QGIS 1.7.4 Wroclaw with GDAL 1.8.1 ...

I have a MODIS 250m resolution satellite image in jpg format.How do i do image processing using NDVI technique on it? Basically i have to detect vegetation for a 250m resolution MODIS image using NDVI ...

Please, I have a jpg image which I want to work on, but I have a problem with it. I understand that I need a shapefile that is already georeferenced to georeferenced the jpg. Pls, how do I know that a ...